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Bulletin 3. The flora of the Raritan Formation, 1911 - State of New ...

Bulletin 3. The flora of the Raritan Formation, 1911 - State of New ...

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212 THE RARITAN FLORA.<br />

and Patoot horizons in Greenland ; from various localities within<br />

<strong>the</strong> Dakota Group, including <strong>the</strong> Woodbine formation <strong>of</strong> Texas ;<br />

and with <strong>the</strong> exception <strong>of</strong> <strong>the</strong> fragments from Marthas Vineyard<br />

and Long Island, which are <strong>of</strong> questionable identity, it is common<br />

in ei<strong>the</strong>r <strong>the</strong> <strong>Raritan</strong> or Magothy or homotaxial formations<br />

from <strong>New</strong> Jersey to Alabama.<br />

Its mast marked character is <strong>the</strong> prominence <strong>of</strong> its tertiary<br />

areolation. It is abundant in <strong>the</strong> <strong>Raritan</strong>, occurring both in <strong>the</strong><br />

older and younger beds, and is one <strong>of</strong> <strong>the</strong> species which points<br />

very strongly to <strong>the</strong> Cenomanian age <strong>of</strong> <strong>the</strong>se deposits.<br />

Occu_'e_we.--South Amboy, Milltown.<br />

Collections.--U. S. National Museum, N. Y. Botanical Garden.<br />

D1ose'zr_os Arae.OYE_SlS Berry.<br />

Phyftites ellipgcus <strong>New</strong>b., F1. Amboy Clays, 13o, pl. 24, f. 9,<br />

1896.<br />

,Diospyros amboyensis Berry, Bull. Torrey Club, vol. 36: 262,<br />

19o9.<br />

Description.--Leaves elliptical in outline, large, 8 cm. long by<br />

4.6 cm. broad; margin undulate; apex rounded, almost retuse;<br />

base broadly rounded', thus cfiffering from <strong>the</strong> wedge-shaped base<br />

<strong>of</strong> Diospyros primceva:; midrib strong, although not so strong as<br />

in <strong>the</strong> latter species; secondaries numerous, 8-1o pairs, regular,<br />

leaving <strong>the</strong> midrib at an angle <strong>of</strong> about 45 °, eamptodrome; tertiary<br />

venation <strong>of</strong> large polygonal meshes, finer in calibre tfian in<br />

Diospyros primceva.<br />

Unfortunately no specimens o<strong>the</strong>r than <strong>New</strong>berry's original<br />

type have been found, and it is possible that it was an aberrant<br />

leaf <strong>of</strong> <strong>the</strong> common Diospyros prirnc_vG some undoubted leaves<br />

<strong>of</strong> which suggest it in <strong>the</strong>ir sum <strong>of</strong> characters. One <strong>of</strong> <strong>the</strong> leaves<br />

which Heer identifies frmn <strong>the</strong> Atane schists <strong>of</strong> Greenland as<br />

Fopuh_s t_yperborec_,1 while <strong>the</strong> apex is partially destroyed and<br />

<strong>the</strong> tertiaries i_re not shown, is very similar to <strong>the</strong> species under<br />

Heer, FI. Foss. Aret., vol. 3, ab. 2; pl. "ag, L 6, I8.<br />

NEW JERSEY GEOLOGICAL SURVEY

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